Lang 2.3 Release Notes

These are the release notes and advice for upgrading Commons-Lang from
version 2.2 to version 2.3.

INTRODUCTION:
This document contains the release notes for the 2.3 version of Apache
Jakarta Commons Lang.
Commons Lang is a set of utility functions and reusable components that
should be of use in any Java environment.
INCOMPATIBLE CHANGES WITH VERSION 2.2:
- Calling stop on a suspended StopWatch will no longer change the underlying time.
It's very unlikely anyone was relying on that bug as a feature.
ADDITIONAL INCOMPATIBLE CHANGES WITH VERSION 2.0:
- The Nestable interface defines the method indexOfThrowable(Class).
Previously the implementations checked only for a specific Class.
Now they check for subclasses of that Class as well.
For most situations this will be the expected behaviour (ie. its a bug fix).
If it causes problems, please use the ExceptionUtils.indexOfThrowable(Class) method instead.
Note that the ExceptionUtils method is available in v1.0 and v2.0 of commons-lang and has not been changed.
(An alternative to this is to change the public static matchSubclasses flag on NestableDelegate.
However, we don't recommend that as a long-term solution.)
- The StopWatch class has had much extra validation added.
If your code previously relied on unusual aspects, it may no longer work.
- Starting with version 2.1, Ant version 1.6.x is required to build. Copy
junit.jar to ANT_HOME/lib. You can get JUnit from http://www.junit.org. See the developer's guide
for more details.
DEPRECATIONS FROM 2.2 to 2.3:
- None
DEPRECATIONS FROM 2.1 to 2.2:
- None
DEPRECATIONS FROM 2.0 to 2.1:
- The enum package has been renamed to enums for JDK1.5 compilance.
All functionality is identical, just the package has changed.
This package will be removed in v3.0.
- NumberUtils.stringToInt - renamed to toInt
- DateUtils - four constants, MILLIS_IN_* have been deprecated as they were defined
as int not long. The replacements are MILLIS_PER_*.
BUG FIXES IN 2.3:
* [LANG-69 ] - ToStringBuilder throws StackOverflowError when an Object cycle exists
* [LANG-102] - Refactor Entities methods
* [LANG-153] - Can't XMLDecode an Enum
* [LANG-262] - Use of enum prevents a classloader from being garbage collected resuling in out of memory exceptions.
* [LANG-279] - HashCodeBuilder throws java.lang.StackOverflowError when an object contains a cycle.
* [LANG-281] - DurationFormatUtils returns wrong result
* [LANG-286] - Serialization - not backwards compatible
* [LANG-292] - unescapeXml("&12345678;") should be "&12345678;"
* [LANG-294] - StrBuilder.replaceAll and StrBuilder.deleteAll can throw ArrayIndexOutOfBoundsException.
* [LANG-295] - StrBuilder contains usages of thisBuf.length when they should use size
* [LANG-299] - Bug in method appendFixedWidthPadRight of class StrBuilder causes an ArrayIndexOutOfBoundsException
* [LANG-300] - NumberUtils.createNumber throws NumberFormatException for one digit long
* [LANG-303] - FastDateFormat.mRules is not transient or serializable
* [LANG-304] - NullPointerException in isAvailableLocale(Locale)
* [LANG-313] - Wrong behavior of Entities.unescape
* [LANG-315] - StopWatch: suspend() acts as split(), if followed by stop()
IMPROVEMENTS IN 2.3:
* [LANG-258] - Enum JavaDoc
* [LANG-266] - Wish for StringUtils.join(Collection, *)
* [LANG-268] - StringUtils.join should allow you to pass a range for it (so it only joins a part of the array)
* [LANG-275] - StringUtils substringsBetween
* [LANG-282] - Create more tests to test out the +=31 replacement code in DurationFormatUtils.
* [LANG-287] - Optimize StringEscapeUtils.unescapeXml(String)
* [LANG-289] - NumberUtils.max(byte[]) and NumberUtils.min(byte[]) are missing
* [LANG-291] - Null-safe comparison methods for finding most recent / least recent dates.
* [LANG-306] - StrBuilder appendln/appendAll/appendSeparator
* [LANG-310] - BooleanUtils isNotTrue/isNotFalse
* [LANG-314] - Tests fail to pass when building with Maven 2

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